On the Nature of the 7-Norbornadienyllithiums. Preliminary Communication
作者:Melvin J. Goldstein、Timothy T. Wenzel
DOI:10.1002/hlca.19840670802
日期:1984.12.19
Lithium reductions of 7-chloronorbornadiene and of bis(7-norbornadienyl)mercury both provide (C7H7)2Li2 (5a). This product is accompanied by C7H7Li2Cl (5c) in the first case, and by C7H7Li (5b) in the second. The theoretically anticipated properties of all three organolithiums are apparent in the consistent Cs symmetry of their hydrocarbon ligands, their protolytic destruction by 12-crown-4, and their
7-氯降冰片二烯和双(7-降冰片二烯基)汞的锂还原均提供(C 7 H 7)2 Li 2(5a)。在第一种情况下,此产品伴有C 7 H 7 Li 2 Cl(5c),在第二种情况下,伴有C 7 H 7 Li(5b)。所有三种有机锂的理论预期性质在其烃配体的一致C s对称性,它们被12冠4分解并其显着的J(C(7),Li)(5a,7.6;5b,16.0;5c 8.9 Hz)。